Simple and compact laser wavelength locker

Details Simple and compact laser wavelength locker Simple and compact laser wavelength locker

2005-01-04

2005-01-04

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C372S032000

Reexamination Certificate

active

06838658

ABSTRACT:
A wavelength locker for monitoring the wavelength drift of a laser uses a pair of detectors for detecting a power component of the laser beam and a wavelength component of the laser beam, respectively. Various positionings of the power detector and/or variations to the collimating lens provide a compact arrangement with fewer components.

REFERENCES:
patent: 5825792 (1998-10-01), Villeneuve et al.
patent: 5963686 (1999-10-01), Zheng et al.
patent: 6122301 (2000-09-01), Tei et al.
patent: 6477190 (2002-11-01), Komiyama et al.

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